Tire attachment.



R. L. MORGAN.

, TIRE ATTACHMENT.

APPLIQATION FILED APR. s, 1912.

1,054,98a f Patented Mar. 4, 1913.

UNITED sTAir Es PATENT OFFICE.

TIRE ATTACHMENT.

Specification of Letters Patent.

Patented Mar. 4, 1913.

Application led April 3, 1912. Serial No. 688,841.

To all lwhom t may concern:

Be it known that I, RALPH L. MORGAN, a citizen of the United States,residing at Worcester, in the count of Worcester and `State ofMassachusetts, `ave invented anew and useful Tire Attachment, of whichthe following-is a specification.

The-object of this invention is to provide anew and improved tireattachment especially adapted for use in connection with the doublefaced orsolid tires commonly em- 'ployed on heavy automobiles or trucks.

These tires usually consist of two faces separated by a groove. Y

c The improved tire attachment consists of a central supporting memberor strand for fitting between the tire faces, withl means for securingthe ends o f the strands to ether 'or in positlon, and of a plurality ofricy supporting member can beheld in position,

left coupling D?.

and Figs. e, 5 and G areviews similar to Fi. 3 illustratingmodifications.

eferring to the drawing and in detail, A designates. a doublefaced tire.

Bfdesi nates the central supporting member whic can be made in the' formof a wire rope or cable havingits ends secured by clamps D as in Fig.3.. The supporting member can be inthe form of a rod 32 having its endsreversely threaded and which ends can be held together by a right and Cdeslgnates the friction members. Each member consists of a wire coiledto. form a spring with projecting ends Cf-C, which,

whenthe attachment-1s in position, will exltend laterally over .the tirefaces .and thus will afford a gripping surface.-funder the` tires, whichwill increase traction and prevent skidding. v

Inthe construct-ion thus far described, the

attachment can slip or creep around the tire.

over each tire If is desired to prevent the attachment lfrom slippingaround the tire, the arrangement shown` in Fig. 4 is employed. In thisarrangement t-he central supporting member is made in the form of a wirerope B-, the I ends of which are drawn through holes bored through thetire and through the felly, and clamps DD are secured on the ends. ofthe rope to hold the same in position. The friction members C are.strung on t-he Wire ro e in the manner similar to that in which t eyare strung on the rod B.

The peculiar. construction of friction.

members allows a spring relief for the bearing ends so that the same`will accommodate themselves easily to the conditions of the road and tothe stress placed thereon.-

By the arrangements described, a simple and eiiicient attachment for thepurposes described are provided.

An additional improvement is shown in Fig. 6 designed for the purpose ofcausing the attachment to cling to the tire when it wears down. For thispurpose the ends of the cables B8 have eyes at lthe ends formed bysplicing and these are connected by a spring C3 normally under enoughtension to permit the eyes to come closer together when the tire wears,without permitting the attachment. to get loose. e

The details and arrangements herein shown-and described may be greatlyvaried by a skilled mechanic without departing from the scope ofthe'invention as expressed inthe claims.

Havin -thus fully described my invent-icm,-

what I 1S I 1. A tire attachment for a double faced esire to secure byLetters-Patent tire comprising a central supporting memberfor fittingbetween the tire faces, and a plurality of friction members looselymounted thereon, each comprising a coiled sprin havin projecting endswhich will exten over t el tire faces.

2. A tireattachment for a vdouble faced gtire, comprising a centralstrand encircling -the tire, means for connecting the ends of the strandso that the same will fit between fthe tire `faces, and a plurality offriction members'.gloosely strungvv thereon: land arranged end to end in"tact with .each other, each vcomprising af. of wire having oppositelypro]ecting en s' kone extending face.

3. A tire attachment comprising a circular los supporting member adaptedto surround a my hand, in the presence of two subscribing tire, and a.plurality of friction members Wltnesses.

loosely mounted thereon end to end each T comprisin a coil'and having a,flat projec- RALPH L' MORGAN' 5 tion exten ing laterally from said coilover Witnesses:

Lthe tire face'. EDWIN CHURCHETS, J 1'.,

In testimony whereof I have hereunto set y ANTHONY G. JACKSON.

